Table 4.

Complications

Study	Vasospasm	Hydrocephalus	Medical complication
Hamada et al., 199913)	2/10	2/10	1/10
Hamada et al., 200114)	10/29	–	8/29
Mont’alverne et al., 200517)	–	–	–
Nieuwkamp et al., 20064)	37/170	70/170	79/170
Asano et al., 200715)	–	–	–
Horiuchi et al., 201111)	–	–	–
Asano et al., 201116)	–	–	–
Scholler et al., 20135)	–	3/25	21/25
Hishikawa et al., 201418)	–	–	–
Sadamasa et al., 201419)	14/69	17/69	–
Wilson et al., 201420)	–	12/16	–
Shimamura et al., 201621)	30/86	13/86	14/86
Total	93/364 (25.5%)	117/376 (31.1%)	123/320 (38.4%)

Numerator means applicable cases and denominator means total number of cases in each study.